Latest Respiratory system Stories
LONDON (Reuters) - Advair improves survival rates for patients with chronic obstruction pulmonary disorder (COPD), the drugmaker GlaxoSmithKline Plc's announced on Tuesday, but the improvement fell just short of statistical significance, meaning the beneficial effect may have been due to chance. Europe's biggest drugmaker said preliminary results from a clinical trial involving more than 6,100 patients, known as TORCH, showed a 17 percent relative reduction in mortality over three...
NEW YORK (Reuters Health) - Inhaled steroids not only control symptoms, they also appear to change the natural course of asthma over time, Danish researchers report in the journal Thorax.Dr. Peter Lange at Hvidavre University Hospital and colleagues conducted a long-term study of 234 asthmatic patients, between 52 and 59 years of age, selected from the general population of Copenhagen. Patients were divided into two groups: 44 patients on maintenance therapy with inhaled steroids and the 190...
By Martha Kerr MONTREAL (Reuters Health) - The latest follow-up report on lung function in New York City firefighters shows that firefighters who served in rescue efforts in the World Trade Center collapse are showing "accelerated pulmonary function decline." The data were presented here Wednesday at CHEST 2005, the annual meeting of the American College of Chest Physicians. Dr. David Pezant of the Albert Einstein College of Medicine and deputy chief medical officer of the New York...
Little evidence exists to support the widespread use of bronchodilators to treat children and adults with cystic fibrosis, according to a new systematic review of published research. "Recurrent wheeze and breathlessness are common in people with cystic fibrosis, and bronchodilators are commonly prescribed," according to lead author Clare Halfhide, M.D., of the Royal Liverpool Children's Hospital in England. "Despite their wide-scale and often long-term use, there is limited objective evidence...
LONDON (Reuters) - AstraZeneca Plc's inhaled corticosteroid drug Pulmicort may help reduce heart attacks and angina in patients with "smoker's lung," or COPD, researchers said on Monday. A new analysis of a previous 1,175-patient study found that off 49 patients who experienced adverse cardio-ischemic events, 37 percent were on the drug and 63 percent on placebo. This suggests chronic obstructive pulmonary disease (COPD) is more than just a respiratory disease and that doctors should...
By Amy Norton NEW YORK (Reuters Health) - Physical fitness is known to wane with age, but a study published Monday shows that the decline gains speed with each decade, regardless of a person's exercise habits. The study of 810 healthy adults found that the rate of decline in aerobic fitness was about four times greater among people in their 70s or older, compared with those in their 20s and 30s. Despite the fact that it boosts aerobic fitness, regular exercise did not change a person's rate...
LONDON -- It's easy to produce a simple sound but virtuoso didgeridoo playing involves tricky breathing and a certain way of opening the vocal tract, Australian physicists said Wednesday.The unusual instrument, which originated in northern Australia and is made from the trunk of a tree hollowed out by termites, usually plays only one note.But skilled performers can produce a range of resonating sounds.Scientists at the University of New South Wales in Sydney studied how the masters do it by...
La Jolla, CA, June 29, 2005 - Physiology is sometimes a crossroads where many different paths converge. Such is the case with acute respiratory distress syndrome, a severe and often fatal condition also known as adult respiratory distress syndrome or simply "shock lung."Acute respiratory distress syndrome can be caused by a number of underlying conditions, including smoke inhalation, a severe blow to the chest, bad pneumonia, septic shock, severe blood loss, or drug overdose....
How the Earth adapted to life has much to do with the generation of a stable oxygen atmosphere. But how life adapted to Earth often hinges on whether oxygen is a poison. New research on insect oxygen use highlights the novel ways that life has shaped the Earth, and vice versa.Astrobiology Magazine -- A new study investigating the respiratory system of insects may have solved a mystery that has intrigued physiologists for decades: why insects routinely stop breathing for minutes at a time....
Latest Respiratory system Reference Libraries
The pharynx is situated directly after the mouth and nose and lies right before the esophagus. Formation and Orientation The pharynx is divided into three separate sections. The nasopharynx is the first part of the pharynx that lies between the soft palate and the base of the skull. The pharyngeal tonsils are located on the back wall of the nasopharynx. This portion of the pharynx is connected to the middle easr by the Eustachian tubes. The nasopharynx is linked to the nasal cavities...
The trachea, commonly called the windpipe, is the air passage-way from the mouth to the lungs. Non-fish vertebrae all have a trachea. The moist with mucus walls of the tube-like structure trap inhaled particles to keep them from entering the lungs. Structure The trachea is an open-ended cylindrical structure that starts at the larynx and ends at the bifurcation. It is about one inch in diameter and can run four to six inches in length. Within the pipe there are anywhere from 15 to 20...
The lung is a vital organ that is a part of the respiratory system. Generally a person has two lungs; however, the body can function with only one. The lung’s main function is to move oxygen and carbon dioxide into and out of the bloodstream through gas exchange. The lungs are located lateral to the heart in the thoracic cavity. Each lung has a tip called the apex, which is superior in the body. The bases of the lungs rest on the diaphragm. They appear to be spongy due to their bundles of...
